"Ran out of sugar for my cake frosting," Mrs. Harper explained. Her hand shook slightly as she opened her pocketbook. Miss Strangeworth wondered, glancing at her quickly, if she had been taking proper care of herself.
Mrs. Harper's shaking hand indicates she is feeling ill at ease. Later in the story, it is revealed that Miss Strangeworth had sent her a letter anonymously, implying that her husband was cheating on her.
Yet another example of foreshadowing is when Miss Strangeworth notices Linda Stewart upset.
"Many people seemed disturbed recently, Miss Strangeworth thought. Only yesterday the Stewarts' fifteen-year-old